超大深基坑变形特征的数值模拟及其实测分析  

Deformation Characteristics of Oversized Deep Foundation Pit : Comparison of Numerical Simulation with the Instrumentation Results

作　　者：沈磊[1] 陆余年[1] 岳建勇[1] 

机构地区：[1]上海建筑设计研究院有限公司,上海200041

出　　处：《地下空间与工程学报》2005年第4期538-542,共5页Chinese Journal of Underground Space and Engineering

摘　　要：结合长峰商城逆作法施工超大深基坑的实际工程,建立了能模拟施工开挖全过程的三维有限元分析模型,通过对有限元计算结果与实测数据的分析比较,分析总结了长峰商城超大深基坑逆作法施工地下连续墙水平变形和基坑周边地表土体沉降特征。Based on the up-down deep excavation project of Changfeng Shopping Mall, in which excavation of a oversized deep foundation pit as adopted. A 3D FEM calculation model was established to simulate the process of excavation work. This paper presents the calculation results of 3D FEM analysis and the monitored displacement of diaphragm wall as well as associated movement of the ground. The performance of the wall and ground movement are discussed based on comparison of the calculation results with the instrumentation results.

关 键 词：超大深基坑 逆作施工 三维有限元分析 变形特征 

分 类 号：TU470+.3[建筑科学—结构工程]